The Online Newsletter: ScienceDaily Health Headlines -- for Saturday, September 4, 2010

ScienceDaily Health Headlines

for Saturday, September 4, 2010

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Mechanisms and function of a type of mysterious immune cell discovered (September 3, 2010) -- In two closely related studies, two teams of scientists have discovered the underlying mechanisms that activate a type of immune cell in the skin and other organs. The findings may lead to the development of new therapies to treat inflammation, wounds, asthma and malignant tumors. ... > full story

How bone-marrow stem cells hold their 'breath' in low-oxygen environments (September 3, 2010) -- Researchers have identified unique metabolic properties that allow a specific type of stem cell in the body to survive and replicate in low-oxygen environments. ... > full story

Low grades in adolescence linked to dopamine genes, says biosocial criminologist (September 3, 2010) -- The academic performance of adolescents will suffer in at least one of four key subjects -- English, math, science, history -- if their DNA contains one or more of three specific dopamine gene variations, according to a biosocial criminologist. ... > full story

Brainy worms: Scientists uncover counterpart of cerebral cortex in marine worms (September 3, 2010) -- Unexpectedly, scientists have now discovered a true counterpart of the cerebral cortex in an invertebrate, a marine worm. Their findings give an idea of what the most ancient higher brain centers looked like, and what our distant ancestors used them for. ... > full story

Capsaicin can act as co-carcinogen, study finds; Chili pepper component linked to skin cancer (September 3, 2010) -- New research links capsaicin, a component of chili peppers, to skin cancer. While the molecular mechanisms of the cancer-promoting effects of capsaicin are not clear and remain controversial, the new research has shown a definite connection to formation of skin cancer through various laboratory studies. ... > full story

Cranberry juice shows promise blocking Staph infections (September 3, 2010) -- Expanding their scope of study on the mechanisms of bacterial infection, researchers have reported the surprise finding from a small clinical study that cranberry juice cocktail blocked a strain of Staphylococcus aureus from beginning the process of infection. ... > full story

Cancer-causing gene crucial in stem cell development, study finds (September 3, 2010) -- A research team has shown for the first time that a gene called Myc, which is traditionally thought of as a cancer-causing gene, may be far more important in the development and persistence of stem cells than was known before. ... > full story

Computer technique could help partially sighted 'see' better (September 3, 2010) -- Thousands of people who are partially sighted following stroke or brain injury could gain greater independence from a simple, cheap and accessible training course which could eventually be delivered from their mobile phones or hand-held games consoles, according to a new study. ... > full story

Children who eat vended snack foods face chronic health problems, poor diet, study finds (September 3, 2010) -- School children who consume foods purchased in vending machines are more likely to develop poor diet quality -- and that may be associated with being overweight, obese or at risk for chronic health problems such as diabetes and coronary artery disease, according to new research. ... > full story

Increased risk for lupus in men with certain form of immune receptor (September 3, 2010) -- Humans -- males in particular -- with a variant form of the immune receptor gene "Toll Like Receptor 7" are at increased risk of developing the autoimmune disease lupus. This finding offers renewed hope for developing more targeted treatments. ... > full story

Social networks influence health behaviors (September 3, 2010) -- Individuals are more likely to acquire new health practices while living in networks with dense clusters of connections -- that is, when in close contact with people they already know well. ... > full story

Cigarette smoke may contribute to lung inflammation through a new chemical pathway (September 3, 2010) -- Cigarette smoke shuts off a key enzyme in airways that regulates the body's response to inflammation, according to new findings. Researchers say smoke inhibits the enzyme, called Leukotriene A4 Hydrolase (LTA4H), causing it to fail in its job of shutting down white blood cells following a successful response to inflammation. ... > full story

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